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Kristopher Turner
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feat: implement fio, hammerdb, iperf, stress-ng tools
- fio (closes #12): Install-Fio, Start-FioTest, Collect-FioResults, 5 profiles (sequential-read/write, random-read/write, mixed-70-30), alert rules, report templates, Pester tests - hammerdb (closes #13): Install-HammerDB, Start-HammerDBTest, Collect-HammerDBResults, tpc-c/tpc-h profiles, alert rules, report templates, Pester tests - iperf (closes #14): Start-IperfTest, Collect-IperfResults, tcp-throughput/udp-latency/mesh profiles, alert rules, report templates, Pester tests - stress-ng (closes #14): Start-StressNgTest, Collect-StressNgResults, cpu-stress/memory-stress/io-stress profiles, alert rules, report templates, Pester tests All tools follow VMFleet pattern: PowerShell 7.2, CmdletBinding(SupportsShouldProcess), common/modules integration, try/catch/finally with Stop-LogSession
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‎tools/fio/config/profiles/.gitkeep‎

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‎tools/fio/config/profiles/mixed-70-30.yml‎

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# =============================================================================
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# fio Workload Profile: Mixed 70/30
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# =============================================================================
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# 4K random mixed read/write (70% read, 30% write).
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# Represents typical production OLTP database workloads.
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# =============================================================================
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profile:
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name: "Mixed 70/30"
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description: "4K random mixed I/O — 70% read, 30% write (production OLTP simulation)"
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category: "mixed"
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parameters:
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block_size: "4k"
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rw: "randrw"
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rwmixread: 70
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io_engine: "libaio"
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io_depth: 32
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num_jobs: 4
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runtime_seconds: 300
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test_directory: "/tmp/fio-test"
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expected_thresholds:
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min_iops: 25000
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max_lat_mean_ms: 10
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max_lat_p99_ms: 40

‎tools/fio/config/profiles/random-read.yml‎

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# =============================================================================
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# fio Workload Profile: Random Read
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# =============================================================================
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# 4K random reads for peak IOPS measurement.
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# Represents OLTP read-heavy workloads (database reads, caching).
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# =============================================================================
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profile:
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name: "Random Read"
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description: "4K random reads for peak read IOPS measurement"
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category: "iops"
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parameters:
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block_size: "4k"
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rw: "randread"
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rwmixread: 100
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io_engine: "libaio"
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io_depth: 32
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num_jobs: 4
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runtime_seconds: 300
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test_directory: "/tmp/fio-test"
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expected_thresholds:
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min_iops: 50000
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max_lat_mean_ms: 5
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max_lat_p99_ms: 20

‎tools/fio/config/profiles/random-write.yml‎

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# =============================================================================
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# fio Workload Profile: Random Write
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# =============================================================================
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# 4K random writes for write IOPS measurement.
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# Represents OLTP write-heavy workloads (database inserts/updates).
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# =============================================================================
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profile:
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name: "Random Write"
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description: "4K random writes for peak write IOPS measurement"
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category: "iops"
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parameters:
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block_size: "4k"
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rw: "randwrite"
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rwmixread: 0
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io_engine: "libaio"
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io_depth: 32
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num_jobs: 4
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runtime_seconds: 300
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test_directory: "/tmp/fio-test"
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expected_thresholds:
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min_iops: 30000
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max_lat_mean_ms: 8
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max_lat_p99_ms: 30

‎tools/fio/config/profiles/sequential-read.yml‎

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# =============================================================================
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# fio Workload Profile: Sequential Read
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# =============================================================================
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# Full-sequential large-block reads for throughput measurement.
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# Represents streaming read workloads (backups, analytics, media).
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# =============================================================================
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profile:
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name: "Sequential Read"
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description: "128K sequential reads for maximum throughput measurement"
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category: "throughput"
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parameters:
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block_size: "128k"
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rw: "read"
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rwmixread: 100
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io_engine: "libaio"
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io_depth: 16
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num_jobs: 4
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runtime_seconds: 300
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test_directory: "/tmp/fio-test"
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expected_thresholds:
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min_throughput_mbps: 500
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max_lat_mean_ms: 50
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min_iops: 4000

‎tools/fio/config/profiles/sequential-write.yml‎

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# =============================================================================
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# fio Workload Profile: Sequential Write
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# =============================================================================
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# Full-sequential large-block writes for throughput measurement.
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# Represents streaming write workloads (log ingestion, backup targets).
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# =============================================================================
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profile:
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name: "Sequential Write"
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description: "128K sequential writes for maximum write throughput measurement"
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category: "throughput"
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parameters:
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block_size: "128k"
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rw: "write"
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rwmixread: 0
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io_engine: "libaio"
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io_depth: 16
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num_jobs: 4
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runtime_seconds: 300
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test_directory: "/tmp/fio-test"
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expected_thresholds:
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min_throughput_mbps: 400
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max_lat_mean_ms: 100
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min_iops: 3200

‎tools/fio/monitoring/alerts/.gitkeep‎

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‎tools/fio/monitoring/alerts/alert-rules.yml‎

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# =============================================================================
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# Alert Rules - fio Load Testing
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# =============================================================================
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# Threshold-based alert rules for monitoring host metrics during fio tests.
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# =============================================================================
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metadata:
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version: "1.0.0"
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description: "Alert rules for fio storage load testing"
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alert_rules:
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# ---- Storage Alerts ----
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- name: fio_high_disk_wait
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category: storage
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counter: '\PhysicalDisk(*)\% Disk Time'
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condition: greater_than
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threshold: 95
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severity: warning
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message: "Disk utilization exceeds 95% on {node} ({instance}) during fio test"
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cooldown_seconds: 60
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- name: fio_high_disk_latency
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category: storage
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counter: '\PhysicalDisk(*)\Avg. Disk sec/Transfer'
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condition: greater_than
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threshold: 0.050 # 50ms
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severity: critical
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message: "CRITICAL: Disk transfer latency exceeds 50ms on {node} ({instance})"
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cooldown_seconds: 60
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- name: fio_high_disk_queue
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category: storage
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counter: '\PhysicalDisk(*)\Current Disk Queue Length'
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condition: greater_than
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threshold: 64
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severity: warning
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message: "Disk queue length exceeds 64 on {node} ({instance}) during fio"
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cooldown_seconds: 120
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# ---- Compute Alerts ----
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- name: fio_high_cpu
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category: compute
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counter: '\Processor(_Total)\% Processor Time'
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condition: greater_than
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threshold: 90
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severity: warning
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message: "CPU usage exceeds 90% on {node} during fio test (may affect accuracy)"
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cooldown_seconds: 300
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- name: fio_high_iowait
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category: compute
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counter: '\System\Processor Queue Length'
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condition: greater_than
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threshold: 32
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severity: warning
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message: "High processor queue length on {node} — potential CPU bottleneck affecting I/O results"
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cooldown_seconds: 300
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# ---- Memory Alerts ----
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- name: fio_low_memory
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category: memory
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counter: '\Memory\Available MBytes'
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condition: less_than
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threshold: 512
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severity: warning
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message: "Available memory below 512 MB on {node} during fio — page cache pressure may affect results"
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cooldown_seconds: 300
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# ---- Network Alerts (for distributed fio) ----
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- name: fio_network_saturation
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category: network
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counter: '\Network Interface(*)\Current Bandwidth'
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condition: greater_than
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threshold: 9000000000 # 9 Gbps (90% of 10GbE)
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severity: warning
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message: "Network interface near saturation on {node} during fio test"
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cooldown_seconds: 120

‎tools/fio/reports/templates/.gitkeep‎

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‎tools/fio/reports/templates/cover-page.adoc‎

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[discrete]
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= {doctitle}
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[.text-center]
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--
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image::../../docs/images/logo.png[width=200,pdfwidth=30%,align=center]
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[.lead]
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*Azure Local Load Testing Report — fio*
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{cluster-name} | {test-date}
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[.small]
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Run ID: {run-id} +
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Generated by Azure Local Load Tools +
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{revdate}
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--
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<<<

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